Electric water-heater.



PATENTED APR. l0, 1906.

E. E. SHIPP. ELECTRIC WATER HEATER.

APPLICATION FILED AUG. l0. 1903.

III

lwlmll'lu'miillllllll IIIIIIII 'FREDERIC E. "sHIPr, or' sr.

LOUIS,

MissoRr, AssrGNoR or ONE-HALF TOJAMES HOWZE, OF ST.` LOUIS', MISSOURI.

'I ELECTRIC; WATER-HEATER. Y

To alliwhom, it may concern:

' Be it known that I, FREDERIC'F. SHIPP, a

.elty hereinafter fully described, and pointed citizen of the United' States,'residing in the city of St. Louis, in.A the State'of Missouri, have invented certain new and useful Improvements in ElectricWater-I-Ieaters, ofv

which the following is aV full, clear, and exact description, reference being had to the yaccompanying drawings, forming part of this speclflca'tion. l

My Yinvention relates to an apparatus for heating Water through the medium of an elec- .'trical currentpassed through-a heating-coil in the heater. v

The invention consists in features of novout in the claim.

Fi e I vis an end elevation of my heater. Fig. I is a vertical longitudinal section taken on line II II, Fig. I. Fig. III is a vertical transverse section taken on line III III, Fig. II. Fig. IV is an enlarged view of one end of l the heating-coil-receiving core in the heater.

1 designates a water-tank, which is prefersupported by legs 2. Leading from one abl endyof the tank 1 is a downtake-pipe 3, and leading upwardly in the oppositefend of the l* tank is an uptake-pipe 4, the latter of which i communication with the upta Jinder, so that al space, as seen the outtake or uptake en 5o preferably extendsto an elevation above the ottom ofthe tank, as seen in Fig. II.

' 5 desi nates an outer cylinder. constituting a part o my heater. This outer cylinder is closed at both ends, and communication be- 1 tween the doWntake-pipe 3 and the interior of the cylinder is connectin der, and t provided by a couplin 6, said doWntake-pipe and the cy ine opposite end of th c linder has Ize pipe 4 through a coupling 7.

8 designates'an inner cylinder located within the outer cylinder 5 and su free from the Wall and ends o saidouter cylprovided with a spiral -groove 12. (Most clearly seen in Fig, V.) The' groove in this t l core' 11 receives a coil 13 of metallic wire, that Specification of Letters atent.

Application ined August 10, 1903. serial No. 158,882.

ported therein ing longitudinally throughv Patented April v10, 1906.

serves as a heating-coil and is wound around said core from end to end, as seen in Fig.` I I. One of the terminals of said heating-coil', as indicated at 14, leads from the coil to the eX- terior of the heater and is connected to a binding-post 15, while the opposite terminal, as seen at 16, leads to a binding-post 17. The binding-posts 15 and 17 receive the connection, respectively, of electrical conductors 18 and 19,-through`which electrical current is passed into and rom the heatin -coil 13.

20 is a jacket-surrounding the eating-coilreceiving core 1 1 and the coil Wound thereon and between which and said core the heating-coilis embedded. f

Thecore'll and the jacket 20 may be of any good conductor of heat-such as ireclay, cement, or analogous material-by which heat imparted thereto from the heating-coil will be readily and fully radiated.

In the practical use of my .heater water is placed in the tank 1, from which it descends into the outer cylinder 5 to circulate through the space 9 therein and through the central Vtube 410 in the inner cylinder 8. Electrical heat the coil 13 therein to a high degree, and from said coil the resultant heat passes into the core 11 and jacket 20, in which the coil is embedded, to be radiated therefrom through 'the inner cylinder 8 and central tube 10 to heat the water that has been delivered into the heater from the tank l. As the Water becomes heated itcirculates from the heater throughthe coupling 7 and uptake-pipe 4 to return tothe tank 1,while the cooler Water at the bottom of the tank descends into the heater to take the place of the heated water jdischarged therefrom; Thus by continuous circulation from the tank to the heater therethrou h water is efficiently and quickly heatecgl.

I claim as my invention-- An electric water-heater comprising a tank, 'a cylinder arranged beneath said tank, removable screw-caps located on the ends of said cylinder, tubular connections from each inder an. held therein so that a space is .formed between the tWo cylinders, ends rigidly iiXed in said inner cylinder, altube passing longitudinally through the inner cylinder through the downtake-pipe 3 and coupling 6 current is then turned on in the heater to" screw-capto the water-tank, a second cylinder arran ed Within the iirst-mentloned cyl' roo . inner cylinder, insulated plugs located on oneA i@ y ariege and having its ends seated in the ends of the inner cylinder, a heat-radiating core arranged ppon ne tube and laving a hspiral groove orme in its peri ery, .a eatin Wire wound in said groov, a heat-radiating jacket FREDERIC F' SHPP surrounding the heating-Wire and core, insu- In presence of lated plugs located in one of the ends of. the E. S. KNIGHT M. P. SMITH.

of theremovable endsiof the outer cylinder through which plugs the terminals of the I lheating-(Wire pass, substantially as set forth. 

